Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 11:01

General

  • Target
    ae5aa8fd6a6fb226fd50dd77e48e0f1c.exe
  • Size 245KB
  • Sample240229-m42ylsfd73
  • SHA256 40a716df40539d3f139aee87636318738f19c7da6b62bf2588bd3a6d4e10f9db
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae5aa8fd6a6fb226fd50dd77e48e0f1c.exe
    "C:\Users\Admin\AppData\Local\Temp\ae5aa8fd6a6fb226fd50dd77e48e0f1c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\5076e7e103b9d.exe
      .\5076e7e103b9d.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:4588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\Download and Sa\uninstall.exe
        • Size 48KB
        • SHA256 d8fb9c21b350a06449c7e6934a3c2d971d20851ce73938bbc5f79349f970721c
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 463c72688e56d8274d7ad0480809b555c878e90f82a68600690ceb2277facbbf
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 a1850f0901fcc8d83406135bbbe50d76d2d7aaf6ea189cbb1738e985538f7279
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 cae8708ae9032a6e7e9f224f89f3442d19071d1aff00e4eff8c207be6b7ea30a
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 1df1854e26d6daf67606644b0eec92390f404e0f221b59059d9292056a29a5e9
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\[email protected]\install.rdf
        • Size 718B
        • SHA256 c74b7a5524067a82379830f54a51d3643f8b66c35cb65b00da79a4ed9aaba699
        • MD5 SHA1 SHA512

        5076e7e103b9d.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\5076e7e103b9d.exe
        • Size 65KB
        • SHA256 d75c34545066eb787ed671c6d4ce4f4c6267637518ca683dfefb79f95f14226b
        • MD5 SHA1 SHA512 SSDEEP

        5076e7e103bd6.ocx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\5076e7e103bd6.ocx
        • Size 126KB
        • SHA256 5cbd7f4b8f991ccab51cfc1fd0a5437013c5196f3c636632d691103aa3708adb
        • MD5 SHA1 SHA512 SSDEEP

        5076e7e103c0f.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\5076e7e103c0f.html
        • Size 4KB
        • SHA256 7ba87f5f6dc4c7e3a1098996aac6fef7f696ceabe9641f2d48c015e235353676
        • MD5 SHA1 SHA512 SSDEEP

        5076e7e103c48.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\5076e7e103c48.js
        • Size 9B
        • SHA256 f560d76474380da948a0c5ab8682dc026822d9685268c592f315224b1b968bf6
        • MD5 SHA1 SHA512

        jdbefpmgnmjnmfbnlhmlplfdgkokchol.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\jdbefpmgnmjnmfbnlhmlplfdgkokchol.crx
        • Size 7KB
        • SHA256 f3face472bcd6db53600d48aa6bed55a42166f847341476d919051d306d387b8
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5CB6.tmp\settings.ini
        • Size 924B
        • SHA256 75b4b10d3bcc94789be8477f1a3dddb623849a3f814bbbeeb56360ed5faf9798
        • MD5 SHA1 SHA512

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nse5E5D.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512